Roller skate



Feb. 15, 1927. 1,617,984

J. BlGGlO ROLLER SKATE Filed July 13, 1925 INVENTQR. LlQH/V E G/o.

" ATTORNEY.

V I provide double shown in Figure 2, belng preferably of fibre Y oni? nseio,

or LITTLE rALIls, NEW JERSEY. I

ROLLER SKATE.

. Application: filed ly 12, magseaa Nd. 4as7a I I This inventionrelate's to roller skates and more particularly to what er. mounting Iterm a new rollfor the front and rear skate axles whereby a greaterroller contact surface 1s permitted and also prevents side slipping aswhen turning corners at a rapid rate of speed.

1 One of the objects of invention is to I provide a front and rear axleof a roller skate with a double set of rollers, thus producingpractically an eight wheel skate, 1n-

stead of the usual four wheel, so

that the inner rollers of each set and the outer rollers may travel atdifierent rates of speed when turning'sharp corners during fancyskating.

or speed To enableothers skilled in the art to fully comprehend theinvention that they underlying features of my may vembody the same inthe various modifications in structure and relationcontemplated,drawings depleting a preferred form have been annexed as apart of this disclosure and in such drawings, similar referencecharacters denotev corresponding parts throughout views, of which,

all the Figure 1 is a view of the roller skate em bodying my invention.

mounting. V

Referring now to the drawings Figure 2 is a front View, partly insection. Figure 3 is a modified form of roller.

wherein like reference characters designate corresponding partsthroughout the several views, 5 designates and the front and frames 7The front skate being the same,

the body of the skate, having the usual front and rear buffers 6 rearaxle supporting and rear axles of the it will only be necessary todescribe the roller mounting on the front axle'8 and the modified formof the invention.

It will be observ considerable length so the sides of the frame ers.Instead of using rollers for 5 to support or other materials and mountedon 8 so as'to provide d thatthe axle 8 is of as to extend beyond therolla single set'or two the front and rear of the skate,

sets of rollers int-he formthe axle a contact or hearing surface for thepurposes presently to appear. on the shaft, I provide an inside cone 910 and an outside type of ball bearthere s 'tive rollers.

providing a .larity, I

terations therein may be made. I therefore independently rotatable,tral,.common scone 15, which may be solid or split, and provided withball bearings 16, to assist in the operation of the respec- It will bereadily appreciated that when making a sharp turn, the outside roller 14may rotate much faster than the inside roller and vat the same time,there 1s V afi'ordeda greater roller contact surface, with the floor orcement so asto prevent slipping. This is particularly useful duringfancy skating and speed skating and since the rollers-1S, and 14, bothat the front and rear of the skate, provide a wider contact surface, italso permits beginners skating more quickly. Of course, of the threadedshaft Sear-e provided with the usual nut and Washers17, 18for theobvious purpose. The shaft 8 may be threaded throughout its length ormaybe slotted to receive suitable cones and bearings for propercooperation on the shaft.

I have 1 shown -a slightly In Figure 3 modified form of the inventionwhich pre vents the admission of foreign matter between the inner andouter rollers 19, 20, by groove 21, near the outer edges of the saidrollers 19, 20. In this form of the invention it is preferable toconstruct the rollers '19, 20,01 steel with a suitable groove engagingflange and as above described the usual type of cones and bearings arepro vided' for the shaft are mounted, V

While I have illustrated and described my invention with some I realizethat in practice various alon which said rollers.

an insideroller13 andan outside roller I there being a oento learn theends degree of particu- 1 reserve the right and privilege of changing vr the form of the details of construotionor otherwise altering thearrangement of the correlated parts without departing from the spirit ofthe invention'or the scope of they appended claims.

Having thus described my invention, what I claim as new and desireto'secure by United States Letters Patent is 1 1. In a roller skate, aframe, front and rear supporting axles, pendently revolvable rollersaxles, cones .on the shaft for of rollers, and ball bearings conesuponfwhich the rollers revolve.

2. In a roller skate, a frame, rear supporting axles, double sets oneach of said double sets of indeeach of the sets mounted in said frontand of independently revolvable rollers on each of the said axles,outside bearings for each roller a bearing between each of the saidrollers, and means formed on the adjacent faces of the rollers forpreventing accumulation of dirt therebetween. c i

'3. Ina roller skate, a frame, front and rear supporting axles, doublesets of independently revolvable rollers on each of the w said axles,outside cones bearings on the cones intermediate cones and bearings onthe said intermediate cones located between the said rollers, one of therollers being provided with a flange and the adjacent roller beinggrooved to receive said other 15 roller flange, whereby the accumulationof JOHN meant. [a r

